Ключевые слова: alert, amplifier, announce, audio, background, bass, broadcast, broadcasting, business, communication, design, digital, element, entertainment, equalizer, equipment, icon, illustration, logo, loud, loudspeaker, media, megaphone, message, microphone, modern, multimedia, music, musical, noise, party, power, promotion, public, radio, sign, simple, sound, speak, speaker, speech, stereo, studio, subwoofer, symbol, system, technology, voice, volume,